/*重置样式*/
html,body{
    height: 100%;
    padding: 0;
    margin: 0;
}

#app{
    height: 100%;
}

.df{
    display: flex;
}

.aic{
    align-content: center;
}

.jcc{
    justify-content: center;
}

.jcsb{
    justify-content: space-between;
}

.fdc{
    flex-direction: column;
}

.f1{
    /*用于弹性项，使其占据可用空间的比例为 1*/
    flex: 1;
}

.fn{
    /*用于弹性项，使其不伸缩*/
    flex: none;
}

.mt10{
    margin-top: 10px;
}

.mb10{
    margin-bottom: 10px;
}

.p15{
    padding: 15px;
}

.tdn{
    text-decoration: none;
}



